招募自然杀手T细胞以改善疫苗接种:从临床前和临床研究中吸取教训
Olivia K Burn1, Nathaniel Dasyam1, Ian F Hermans1
1Malaghan Institute of Medical Research, Wellington, New Zealand.
Critical reviews in oncogenesis
|February 29, 2024
概括
在临床试验中,向树突细胞疫苗添加激动剂并没有改善癌症免疫力. 针对抗原呈现细胞的更简单的策略可能对免疫刺激更有效.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 疫苗学 疫苗学 疫苗学
背景情况:
- I型自然杀伤性T (NKT) 细胞刺激抗原呈现细胞,从而导致对抗激素作为癌症疫苗免疫辅助剂的临床前研究.
- 已经探索NKT细胞激动剂来增强T细胞对抗癌症的反应.
研究的目的:
- 为了评估添加NKT细胞激动剂到以树突细胞为基础的疫苗的临床疗效.
- 确定先前研究的局限性,并提出免疫刺激的替代策略.
主要方法:
- 一个临床试验涉及基于树突细胞的疫苗,有或没有NKT细胞激动剂.
- 分析潜在的局限性和针对抗原呈现细胞的替代策略.
主要成果:
- 将NKT细胞激动剂添加到树突细胞疫苗中并没有在刺激T细胞反应方面显示出显著的优势.
- 该研究确定了NKT细胞激动剂临床应用的潜在局限性.
结论:
- 更简单的策略,如直接向抗原呈现细胞或使用纳米导体,可能比目前基于激动剂的方法更有效.
- 尽管mRNA疫苗取得了进展,但NKT细胞仍可能在调节T细胞分化和诱导居住记忆T细胞方面发挥作用.
相关概念视频
01:27Cytotoxic T Cells-mediated Immune Response
908
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
908
01:29Immune Response Against Viral Pathogens
781
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
781
01:27Tumor Immunotherapy
524
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
524